Update flake.lock

[github-actions]

https://github.com/samestep/env/actions/runs/34134385145

unpacking 'github:nix-community/home-manager/2c0350c759688177331b8f5242311fae8877bdb3' into the Git cache...
unpacking 'github:moss-lang/moss/5d1d5ec916da397845c6b5ee2658e07a41f0a334' into the Git cache...
unpacking 'github:nix-community/nix-index-database/116ad1c2adb642405ef8916f6a94c8626f971344' into the Git cache...
unpacking 'github:NixOS/nixpkgs/0af3d1402dec3fc7e93635e511d1f7428c89cebf' into the Git cache...
unpacking 'github:NixOS/nixpkgs/c25784012c9982bca5b3e0de87e90bbdac8927d3' into the Git cache...
unpacking 'github:oxalica/rust-overlay/ca7f624be3935a5bc46d2c240515491ab8675503' into the Git cache...
warning: updating lock file "/home/runner/work/env/env/flake.lock":
• Updated input 'nixpkgs':
    'github:NixOS/nixpkgs/17de0b976395537756f30a3e78f2f06e5cec89ed?narHash=sha256-kOrCcSIA6w9J1hX5DqHy2k9pDTJymExTsbV74U9UtCA%3D' (2026-09-04)
  → 'github:NixOS/nixpkgs/0af3d1402dec3fc7e93635e511d1f7428c89cebf?narHash=sha256-RqeFOwW329f4i1f5QlJgQYwgEZvxIHJsUYlzIBxsKsY%3D' (2026-09-05)
• Updated input 'nixpkgs-stable':
    'github:NixOS/nixpkgs/6713828a351efa628b025a1adf7f43cbf8597513?narHash=sha256-Fd3OB8J9JhgliQwOKcqx4M672CInxi1I5VnwsaXeSQo%3D' (2026-09-05)
  → 'github:NixOS/nixpkgs/c25784012c9982bca5b3e0de87e90bbdac8927d3?narHash=sha256-%2Bv4I4LawmRD/mVxO7QIAerRrCkElp3YImzWkkUnvOTg%3D' (2026-09-06)
• Updated input 'rust-overlay':
    'github:oxalica/rust-overlay/4748ec2f5ed4a881474ed4c98aa71a5308cdac8d?narHash=sha256-pcqbpV4ZI79al6KAlr%2BWJjaEo/PYfgctRlG43D5BSJM%3D' (2026-09-06)
  → 'github:oxalica/rust-overlay/ca7f624be3935a5bc46d2c240515491ab8675503?narHash=sha256-pp8lb5CrKjmscZbTK34HuCaq18zDU4Q6zlaD5dS%2BHi4%3D' (2026-09-07)